# Theodor Janssen

> German architect, active in Berlin

**Wikidata**: [Q124751044](https://www.wikidata.org/wiki/Q124751044)  
**Source**: https://4ort.xyz/entity/theodor-janssen


## References

1. archINFORM
2. CiNii Research
3. [archINFORM](https://www.archinform.net/service/wd_aiarch.php)